30224/DF

Matched tapered roller bearings arranged face-to-face

Matched tapered roller bearings arranged face-to-face (X-arrangement, load lines diverge towards the bearing axis) accommodate high radial loads and axial loads in both directions.

The precision manufactured intermediate ring between the outer rings enables a defined internal clearance or preload to be achieved when mounted. Matched tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills, and machines in the mining industry.

  • High radial load carrying capacity
  • Designed for axial loads in both directions
  • Relatively high stiffness
  • Surface finish on the contact surfaces of the rollers and raceways that enhances operational reliability

Dimensions

d
120 mm
Bore diameter
D
215 mm
Outside diameter
T
87 mm
Total width
2B
80 mm
Width of inner rings
b
10 mm
Width of lubrication groove
K
7.5 mm
Diameter of lubrication hole
r3,4
min.2.5 mm
Chamfer dimension
r5
min.mm
Chamfer dimension
Abutment dimensions - 30224/DF

Abutment dimensions

da
max.141 mm
Diameter of shaft abutment
Da
min.187 mm
Diameter of housing abutment
Da
max.203 mm
Diameter of housing abutment
Ca
min.mm
Minimum width of space required in housing on large side face
ra
max.mm
Radius of fillet
rc
max.mm
Radius of fillet

Calculation data

SKF performance class
SKF Explorer
Basic dynamic load rating C
716 kN
Basic static load rating C0
915 kN
Fatigue load limit Pu
98 kN
Reference speed
2 000 r/min
Limiting speed
3 000 r/min
Limiting value e
0.43
Calculation factor Y1
1.6
Calculation factor Y2
2.3
Calculation factor Y0
1.6

Properties

Bearing part Complete bearing
Number of rows 2
Locating feature, bearing outer ring None
Bore type Cylindrical
Cage Sheet metal
Matched arrangement Face-to-face (X)
Number of bearings in matched set 2
Coating Without
Sealing Without
Lubricant None
Relubrication feature With

Logistics

Product net weight 12.8 kg
eClass code 23-05-09-10

(120X215X87) (30224J2DF) (30224DF)

Additional information

Weight 12.8 kg
Size (mm)

Colour